2957843 has 4 divisors (see below), whose sum is σ = 3380400. Its totient is φ = 2535288.

The previous prime is 2957833. The next prime is 2957861. The reversal of 2957843 is 3487592.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2957843 - 2⁴ = 2957827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2957797 and 2957806.

It is not an unprimeable number, because it can be changed into a prime (2957833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211268 + ... + 211281.

It is an arithmetic number, because the mean of its divisors is an integer number (845100).

2^2957843 is an apocalyptic number.

2957843 is a deficient number, since it is larger than the sum of its proper divisors (422557).

2957843 is an equidigital number, since it uses as much as digits as its factorization.

2957843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422556.

The product of its digits is 60480, while the sum is 38.

The square root of 2957843 is about 1719.8380737732. The cubic root of 2957843 is about 143.5462019441.

The spelling of 2957843 in words is "two million, nine hundred fifty-seven thousand, eight hundred forty-three".